Air register



Aug 16 1927' E, H. PEABODY AIR REGISTER Filed Aug. 18, 1922 Snom/woz Patented Aug. 16, 1927.

Y l 1,639,636r

"ERNEST PEAB'onY; 'or r'nmeir iteration,"New 'irertir, fnssieiqen vTp' rEizepYNGI- INE'ERING coRPoRArromF NEw'YoRx, N. Y., A CoRORATIoN oF NEW YORK.

"AIR REG'ISTR.

Application 4`fiieamigust isj'iaafserii No."5s2,7o2. A

AMy invent-ion relates toair registers .for admitting and controlling -tlie 'flow'of air, Y l andl particularly'for vuse with'r apparatusfor burning'liquid or finely' divided fuel. One aim of the invention is to make' an air register of simple and cheap construction in which the air is'easily controlled' by means of doors arrangedvin the annular `space formed between tive cylindricall conc'entric'surfaces, and I of such 'design jas "to give the t entering air 'arotary motion.

Further fffeatur'es of myfin'vention'will be apparent from 'the following drawings Figure 1 is alongitudinal 'section through the air 'register as vattached to the wall of the furnace. A

`Figure 2 is a section through the air 'register on the line 2-2 "of Figure 1.

Figurer?) isa'v'iewfof one'of the air dOors, showing the hinge strap. A y Figure 4 is 'aside View or I'elevation of Figure v3. -v

Figure 'isadetailef ne'of'the doors, as 'arranged lbetween the twoeylindrical sur- Efaces. n f

Figure V6 is aplan view of Figure 5 showing method of 'rotating the 'do'r 'and contro-lling its position'. Y l l Figure 7 is a modification which I employ.

Intlie carrying out 'of my inventionl 'employ a cylindrical member 1 whichr consists of a pipe er :casti'ngpproyided with a flange 2, which is fastened tothe furnace front 3 by means of studs 4. The furnace front is lined with fire brick 5 having a suitable opening 6, through which the oil is injected into the furnace from the sprayer or fuel pipe 7. A second cylindrical surface 8 which laps cylinder 1, and concentric therewith, has a forward extension 9 properly curved to deliver the air to the space under the hollow cylinder 1. The extension 9 is provided with an extension or boss 11, which supports the sprayer or.fuel pipe 7 The set screw 12 serves to hold the sprayer or fuel pipe in a fixed position. A series of holes is providedin the cylindrical surface 8 around its entire circumference, which re- .ceive the bolts 13. These bolts are tapped into a corresponding set of holes 14 in the cylindrical surface 1 and suitable pipe spacers or separators 15 are placed between the two cylindrical surfaces, holding them in definite relation to each other, the cylinder 8 overlapping the cylinder 1 by a sulii 'ance f swingaround the pipe spacers 15 which vact cient margin. `By reason 4of the' fact thatithe pipe spacers 1'5`are allfm'ade the'. same length,

the cylinder 8 is held lin a concentric position as regards cylinder 1. The bolts.13.

pass through thispipe spacer and ywhen screwed'into the holes 1,4 serve'torhol'd the two eylindersfin thisfixed cncentricposition. The'lnu'mber of bolts 13 is'opti'onfal, dependent' on the diameters' ofthe cylinders 1 andS. (I lhave'seleeted 'eightbolts in this 'y construction, as 'shown in Figure '2. This number may jbe'altered to suit?. the particular design 'of the register required. Y, Corresponding in number with the'boltfsy 8,*suitable air doors 16 are provided andftoe'ach ef` these ',dors is attached va strap l17. The 4donors 16 'are of sufficient width to cause one to 'overlap upon the ether when assembled in v-the l 'annular 'space I'formed between the walls of the'cylinders 1 and 8. Y

The ends of theseedoors are preferably made radial to ythe concentric circles clemprised in the edges of the'doon'whichflatter are "thus made to confm to, the curvature 'of' the cylindersvl yand 8. Sufficient elearis given to 'the doors so* that they can as hinges. "The strap 17.is attached 'to the doo'rson a line which is radial to the'su'rface of the Vin'ne'r `and outer "cylinders, and'fthe ends of Vthese 'straps are turned vup at right angles 'te the 'surface tHe "door and provided vwith l'suitable openings 1.8, to lit the pipe spacers 15. i

On the inner end, that is, the end toward the center of the two cylinders, the strap 17 has an extension 19 fitted with a slot 20. Resting on the exterior surface of the cylin# der 1, there is a ring 21 which is movable around the periphery of the cylinder. The handle 22 is provided in order to move this ring. This handle is fitted with a thread at its inner end 23, so that itmay be screwed into a suitable opening in the ring 21, and can be made to set up tightly on the surface of the cylinder 1, and serve as a set screw for holding the ring in any desired position. The ring 21 is fitted 'with a number of pins or 'tap bolts 24, corresponding in number` with the number of doors, and equally spaced, as are the bolts'and pipe spacers 13 and 15.

When assembled, the prolonged portion of the straps 17 extends over the ring 21 and the bolts 24 are arranged so 'that they .fit

within the slot in this prolonged portion of the strap. By reason of the fact that the pipe spacer 15 passes through the openings 18 in the strap 17 the doors may be rotated about t-hese hinges by rotating the ring around the cylindrical surfaces l, the slot 2O permitting of this rotation Without any binding on the bolts 24. rIhese doors may be held in a position Which closes entirely the annular space bet-Ween the cylinders l and 8, or by rotating the ring they may be opened to any desired amount, and can be held in a fixed position, by screwing down the handle 22. It Will be obvious that as these doors are parallel to each other and may be set at an angle to the axis of the tvvo concentric cylinders, the air on entering between these doors Will assume a rotary motion around said axis. A suitable opening is provided for inspection and lighting of the fuel, and other openings 26 may be provided for cleaning purposes if desired. All of these openings are provided With shutters `for closing same When the register i.: in operation.

In Figure l, I show an embodiment of my invention so constructed that the heat of the furnace front is utilized to Warm the air entering the combustion chamber and thereby preventing a cold blast of air striking directly th-e flame. Vith this construction also there is no direct radiation from the furnace through the register doors as if the embodiment shown in Figure 7 is used. However I do notV Wish to limit myself to either construction as it may be desirable to use either or a modification of either on account of contingencies arising in the actual installation. My invention consists of an annular register with segmental doors overlapping and pivotally mounted between the two concentric surfaces forming the annular inlet.

I Wish it distinctly understood that my air register herein described and illustrated is in the form in Which I desire to construct it and that changes or variations may be made as may be convenient or desirable Without departingfrom the salient features of my invention and I therefore intend the following claims to cover such modifications as naturally fall Within the lines of invention.

I claim:

l. In a fuel burning apparatus, an air register comprising inner and outer ring like members which overlap to form an ex tended annular air passage, bolts connecting said ring like members to hold them in spaced relation, a plurality of shutter members mounted to oscillate on said bolts, a ring like shutter operating member movably mounted on the 4inner ring member, and means for moving said operating member.

2. In a fuel burning apparatus, an air register comprising inner and outer ring like members having concentric portions Which form an extended annular air passage, fixed means connecting said ring like members to hold them in spaced relation, a plurality of shutter members mounted on said means and movable to overlapping relation when closed, a ring like shutter operating member mounted on the inner ring member, and means for moving said member.

3. In a fuel burning apparatus, an air register comprising a plurality of annular members having concentric portions forming an extended annular air passage, fixed means connecting said members to hold them Ain spaced relation and passing across said passage, a plurality of shutter members carried by said means to oscillate thereon, an oscillating shutter operating member mounted on the inner ringmember, and a handle for moving said last-named member;

In testimony whereof I afix my signature.

ERNEST H. PEABODY. 

